Choice of a catalyst and technological scheme for synthesis of solketal

Dmitriev, G. S.; Terekhov, A. V.; Занавескин, Л. Н.; Хаджиев, С. Н.; Занавескин, К. Л.; Максимов, А. Л.

doi:10.1134/s1070427216100094

Cited by 22 publications

(19 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ammaji et al (2017) [62] also reported a similar observation, as the Zr-SBA-15 was the most active and selective catalyst. Dmitriev et al (2016) [63] reported that zeolite beta was the most active solid acid catalyst as compared to amberlist-35 and cation-exchange resin (KU-2-8) [62]. The zeolite beta applied was a commercial one from zeolyst with SiO 2 /Al 2 O 3 of 25 and a zeolite beta made by Angarsk.…”

Section: Ketalization Of Glycerol Over Clay Mineralsmentioning

confidence: 99%

Glycerol to Solketal for Fuel Additive: Recent Progress in Heterogeneous Catalysts

et al. 2019

View full text Add to dashboard Cite

Biodiesel has been successfully commercialized in numerous countries. Glycerol, as a byproduct in biodiesel production plant, has been explored recently for fuel additive production. One of the most prospective fuel additives is solketal, which is produced from glycerol and acetone via an acetalization reaction. This manuscript reviewed recent progress on heterogeneous catalysts used in the exploratory stage of glycerol conversion to solketal. The effects of acidity strength, hydrophobicity, confinement effect, and others are discussed to find the most critical parameters to design better catalysts for solketal production. Among the heterogeneous catalysts, resins, hierarchical zeolites, mesoporous silica materials, and clays have been explored as effective catalysts for acetalization of glycerol. Challenges with each popular catalytic material are elaborated. Future works on glycerol to solketal will be improved by considering the stability of the catalysts in the presence of water as a byproduct. The presence of water and salt in the feed is certainly destructive to the activity and the stability of the catalysts.

show abstract

Section: Ketalization Of Glycerol Over Clay Mineralsmentioning

confidence: 99%

Glycerol to Solketal for Fuel Additive: Recent Progress in Heterogeneous Catalysts

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Conventional processes for solketal production use homogeneous acid catalysts such as p-toluenesulfonic acid (Suriyaprapadilok and Kitiyanan, 2011) and sulfuric acid (Dmitriev et al, 2016), which leads to an increase in the cost of production due to the extra costs of downstream separation of the homogenous catalyst as well as damage to the equipment due to its corrosive ability; thus it cannot be reused. Some homogenous acid catalysts can be easily recovered such as SnF 2 -catalyst (da Silva et al, 2017) and SnCl 2 -catalyst (Menezes et al, 2013), although the presence of chlorides from SnCl 2 in the reactor can cause corrosion in reactors and pipes.…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Analysis of Glycerol Valorization via Catalytic Applications of Sulphonic Acid-Functionalized Copolymer Beads

2020

View full text Add to dashboard Cite

The design of experiments response surface analysis was employed for the first time to study the effect of divinylbenzene (DVB) (20-80 wt. %), diluent (0-100 wt.%), and mixing (200-900 rpm) on the beads' physical properties and on swelling ability. The beads with the highest performances, in terms of mechanical stability, surface area, and swelling ability, were sulphated, and tested in converting glycerol to a valuable product "solketal." Process options for glycerol valorization to solketal using synthesized sulphonic acid-functionalized styrene-divinylbenzene (ST-DVB-SO 3 H) copolymer beads and techno-economic analysis of the processes have been investigated. Three processes were evaluated: two one-stage processes at 8.5 wt.% catalyst and 50 • C, based on either 6:1 acetone to glycerol molar ratio (87% conversion) or 12:1 (98% glycerol to solketal conversion), and a two-stage route (two acetone additions), where ≥98% conversion can be achieved with lower overall acetone use (10:1 acetone to glycerol molar ratio and 50 • C). Techno-economic analyses of the three solketal options were performed using Aspen (HYSYS), based on a fixed capacity of 100,000 te/y and 20-years lifetime. The techno-economic analyses showed that the net present values for the solketal process options

show abstract

“…When compared to unblended gasoline, the higher value of octane number is obtained with blended ones [2]. Meanwhile Dmitriev et al [3] mentioned that gasoline with solketal as oxygenated have improved detergent properties, combustion characteristic and form smaller amount of CO and hydrocarbons during combustion.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous catalytic reaction of glycerol with acetone for solketal production

et al. 2019

View full text Add to dashboard Cite

The rapid growth of biodiesel industries has also increased the production of glycerol as side product. Without proper treatment, glycerol may cause serious problem for the environment. Glycerol can be reacted with acetone to produce solketal as a fuel additive. The aim of this research was to study the glycerol ketalization with acetone using Amberlyst-15 as catalyst. Experiments were undertaken in a batch reactor. A set of experiment was conducted at varying temperature (35 to 60oC), initial mole ratio of acetone to glycerol (2 – 6) and catalyst loading (1,3,5 and 7% w/w). Sample was analyzed every 30 minutes. The results showed that optimal condition was achieved at temperature of 60 °C, initial mole ratio of acetone to glycerol of 3, and the catalyst load of 3%. The highest glycerol conversion achieved was 87.41 % at 60oC for 3 hours reaction. The Pseudo Steady State Hypothesis (PSSH) has been developed as rnet =k4.CG.CAC/1+k5.CG. Parameter estimation of k4 and k5 were evaluated from experimental data at various temperatures. It appears that the model predicted the experimental data well at high conversion (above 80 min) and showed relatively poor prediction below 80 min.

show abstract

Choice of a catalyst and technological scheme for synthesis of solketal

Cited by 22 publications

References 6 publications

Glycerol to Solketal for Fuel Additive: Recent Progress in Heterogeneous Catalysts

Glycerol to Solketal for Fuel Additive: Recent Progress in Heterogeneous Catalysts

Techno-Economic Analysis of Glycerol Valorization via Catalytic Applications of Sulphonic Acid-Functionalized Copolymer Beads

Heterogeneous catalytic reaction of glycerol with acetone for solketal production

Contact Info

Product

Resources

About